CVE-2026-72401 bpf: Fix insn_aux_data leak on verifier err_free_env path

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix insnauxdata leak on verifier errfreeenv path When bpfcheck allocates env-insnauxdata successfully but later fails to allocate env-succ, it jumps directly to errfreeenv. The existing vfreeenv-insnauxdata sits before the...